Comparison

STA Methods vs Calculate Standard Deviation

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

STA Methods

This app helps college statistics students by providing essential formulas and symbols for homework and study. It also includes a dedicated section for taking notes during class or for later review.

Highlights
  • Key statistics formulas
  • Essential symbols reference
  • In-app notes section
  • Study aid for college statistics
  • Homework assistance
Features
Read full description

STA Methods is for student taking college level Statistics. It provides students with key formulas and symbols to reference and study to assist with your homework. STA Methods also contains a notes section for taking notes in class or writing a review to study later.

About

Calculate Standard Deviation

This app calculates standard deviation, variance, and other statistical measures for a given set of values. It simplifies complex statistical formulas with a user-friendly interface and accurate results.

Highlights
  • Calculate Standard Deviation
  • Calculate Variance
  • Calculate Mean
  • Calculate Coefficient of Variance
  • Calculate Standard Error of Mean
  • User-friendly interface
  • Accurate statistical results
Features
Read full description

Make a use of this standard deviation calculator app to attain the results for standard deviation calculations right now: In the context of statistics, the term standard deviation (SD) refers to the variation or dispersion of the data set of values. A lower SD (also called estimated value) shows that the data points exist very close to the origin. Whereas a higher value of it leads the data points to disperse over a wider range of the values. Use this standard deviation app to determine the standard deviation and variance with a single click. With the help of SD, you can easily find how close the sample mean is to the actual mean of the population. You can use this standard deviation calculator app for to generate absolute outputs. Calculate Standard Deviation of A Set of Values: The SD is calculator on the basis of the following terms: Count of Values: It is the number of the values in the data set. Total Sum of Values: Summation represents the addition of all the values that are given in the data set Standard Mean: It refers to the average of all the values in the set of values. Use this mean and standard deviation calculator to find the mean instantly. Variance: The actual dispersion of data from the mean position is called variance. You can work for the variance with the help of this variance calculator. Coefficient of Variance: The amplitude of the data dispersion about the mean is known as coefficient of variance. Standard Error of Mean: The approximate deviation of the population from mean is known as standard error of mean. This standard error calculator helps you to estimate the actual error of mean precisely. SD helps you in performing various statistical calculations with larger data sets. Now there’s no need to stick with daunting statistical formulas to proceed with SD calculation as our variance and standard deviation calculator does all in a few clicks. Apart from the formulas that are difficult to remember, it is a better practice to use this app for absolutely. How Does It Work? This mean absolute deviation calculator app determines the following terms: Standard Deviation Count of Values Total Sum of Values Mean of The Values Variance Coefficient of Variance Standard Error of Mean (SE) Other Features Includes: User-Friendly Interface An easy to use keyboard with a particular key to enter repetition of same number with one single tap Versatile input box that enlarges as you write data point values Most accurate statistical results The standard deviation tells you how wide and curved the graph will be. If you know the above mentioned terms, you have everything that you need in actual for determining standard deviation. Also for the sake of you people, standard deviation calculator is designed to find accurate output corresponding to the terms defined. Hope it will help you for sure. Privacy Policy: https://calculator-online.net/privacy-policy/ Terms of Service: https://calculator-online.net/terms-of-service/

Screenshots

STA Methods4 screens
Calculate Standard Deviation4 screens

Verdict

The call

The clearest difference is rating: STA Methods at 5.0 against Calculate Standard Deviation's 4.5. STA Methods also leads on in-app purchases (none vs 1) and ads (none vs shown). Calculate Standard Deviation's advantage is ratings volume (62 vs 1). On price, update cadence and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calculate Standard Deviation sells 1 one-off in-app purchase. STA Methods asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

STA Methods holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Calculate Standard Deviation has 62 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

STA Methods ships an update every 4 months, Calculate Standard Deviation every 7 months. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.

Scorecard6 real differences · 4 level
STA Methods versus Calculate Standard Deviation: the parameters behind the verdict, then further details
ParameterSTA MethodsCalculate Standard Deviation
PriceFreeFree
Rating5.0 (1 ratings) — better4.5 (62 ratings)
Positive reviews—50.0% of reviews
Number of ratings162 — better
Update frequencyEvery 4 months — betterEvery 7 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size5 MB39 MB
Age rating4+4+
DeveloperSpade Apps, LLCAsad Ahsan

Customer experience

STA Methods

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Calculate Standard Deviation

All ratings62 ratings
Positive88.7%
Neutral3.2%
Negative8.1%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

STA Methods

No in-app purchases

1 purchases

Calculate Standard Deviation

One-time1
  • Standard Deviation Premium$4.99

Questions

Is STA Methods free?
STA Methods is free to download, with no in-app purchases.
Is Calculate Standard Deviation free?
Calculate Standard Deviation is free to download, with in-app purchases available.
Which has better reviews, STA Methods or Calculate Standard Deviation?
STA Methods is rated higher. STA Methods averages 5.0 out of 5 from 1 ratings, while Calculate Standard Deviation averages 4.5 from 62 ratings.
Do STA Methods or Calculate Standard Deviation have ads?
Calculate Standard Deviation shows ads; STA Methods does not.
Which is updated more often, STA Methods or Calculate Standard Deviation?
STA Methods ships an update every 4 months, and Calculate Standard Deviation every 7 months. Most recently, STA Methods was updated on October 2, 2026 and Calculate Standard Deviation on October 3, 2026.

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